CN105098255B - Formation clamp for lithium ion battery with flexible packaging and utilize its battery formation method - Google Patents
Formation clamp for lithium ion battery with flexible packaging and utilize its battery formation method Download PDFInfo
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- CN105098255B CN105098255B CN201510606675.5A CN201510606675A CN105098255B CN 105098255 B CN105098255 B CN 105098255B CN 201510606675 A CN201510606675 A CN 201510606675A CN 105098255 B CN105098255 B CN 105098255B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
Formation clamp for lithium ion battery with flexible packaging of the present invention, applies front shoe, pressing plate that pressure portion includes being parallel to each other, and pressing plate can be slided relative to front shoe level；Clamp battery compartment include the forward and backward fixed plate parallel with front shoe, pressing plate and some pieces of center platens, pressing plate level slide when drive before, center platen integral level slide；Support battery compartment includes the battery supporting plate between fixed plate before, during and after being arranged in, and battery is placed on supporting plate, before air bag stretching, outside center platen；Pressing plate side sets top, and top center line passes through cell pressure center.Its purpose is to provide a kind of formation clamp for lithium ion battery with flexible packaging and the battery formation method using the fixture, the Center of Pressure of the fixture can be adjusted according to the gauge size of battery, pressure is set to be applied on the Center of Pressure of battery, ensure that battery, by constant pressure in a balanced way, finally ensure that the uniformity, security and long circulation life of battery performance in chemical conversion.
Description
Technical field
The present invention relates to non-aqueous electrolyte battery construction or manufacturing technology field, more particularly to a kind of Soft Roll lithium ion
Battery formation fixture and utilize its battery formation method.
Background technology
With the lifting increasingly shown with people's environmental consciousness of environmental problem, problem of environmental pollution is by increasing
Concern, various countries put into effect various Environment Protection Policies successively.It is to solve municipal pollution to substitute traditional fuel vehicle using electric automobile
Optimal selection.It is excellent that lithium ion battery has that energy is high, had extended cycle life, discharge performance is stable and operating temperature range is wide etc.
Point, thus the ideal source as various portable type electronic products, also lead as hybrid vehicle, pure electric automobile and energy storage
The preferred power supply in domain.
Common Li-ion batteries piles generally comprise the components such as battery, battery connecting piece, protection board, and battery is mainly included just
Pole piece, negative plate, barrier film and electrolyte.Due to the particularity of lithium ion battery, chemical conversion is a critical process in processing procedure.
In formation process, electrolyte chemically reacts in negative terminal surface, forms one layer of solid electrolyte film (SEI) film, and SEI films can be with
Prevent the solvent molecule of electrolyte from entering the destruction that negative pole causes negative pole structure.Therefore, the effect quality of chemical conversion determines battery
Performance it is good and bad.So how to ensure to be internally formed robust solid electrolyte interface film (i.e. SEI after Battery formation
Film)Battery formation clamp just plays an important role, and both positive and negative polarity pole piece needs to keep equal with barrier film in battery in formation process
The constant pressure of weighing apparatus.According to another it is demonstrated experimentally that the compactness of SEI films formation and the environment of stability and Battery formation (activation) have compared with
Big relation, is particularly influenceed by the compactness (external pressure) between battery positive/negative plate.The effect quality and battery of chemical conversion
Between formation effect difference, determine that the performance of individual battery is good and bad and performance of stack battery is good and bad.And reality was being produced
Cheng Zhong, has the battery of many styles number, and the length and width size of battery differs, and the Center of Pressure point of battery is also different.In consideration of it,
It is stable when adapting to the soft package lithium ion battery formation clamp of multi-model number there is provided to Battery formation to be necessary that offer is a kind of
Environment, with ensure individual battery formation effect and reduction individual battery between formation effect difference, improve lithium ion single electricity
Pond and the security and service life of stack battery.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of flexible packing lithium ion battery chemical conversion for adapting to Multiple Type
Fixture, the Center of Pressure of the fixture can be adjusted according to the gauge size of battery, pressure is applied to the Center of Pressure of battery
On, it is ensured that battery is in chemical conversion by constant pressure in a balanced way, it is ensured that the planarization of battery, and then ensure that the positive and negative of battery
Pole pole piece keeps gap consistent in the various pieces of battery, thus ensure to be formed on the battery pole piece after chemical conversion one layer it is uniform,
Robust solid electrolyte interface film (i.e. film SEI), finally ensure that the uniformity, security and long circulating of battery performance
Life-span.
In order to solve the above problems, present invention employs following technical scheme：
Formation clamp for lithium ion battery with flexible packaging of the present invention, including apply pressure portion, clamp battery compartment, support battery
Part,
Described to apply front shoe, pressing plate that pressure portion includes being parallel to each other, the pressing plate can be relative to preceding fixation
Plate level is slided；
The clamping battery compartment includes the front pressuring plate parallel with front shoe, pressing plate, rear fixed plate and parallel arrangement
Some pieces of center platens between the front pressuring plate, rear fixed plate, the front pressuring plate is fixedly connected with the pressing plate, the pressing plate level
The front pressuring plate, center platen integral level is driven to slide during slip；
The support battery compartment includes the battery supporting plate being arranged between front pressuring plate, center platen, rear fixed plate, and battery is put
It is placed on the battery supporting plate, the air bag of battery stretches out front pressuring plate, outside center platen；
The pressing plate is equiped with top close to the side of the front pressuring plate, and the center line of the top in the horizontal direction is passed through
The Center of Pressure of battery.
Formation clamp for lithium ion battery with flexible packaging of the present invention slides the transmission for carrying out power by level, passes through pressing plate, preceding pressure
The clamping to battery is realized in related transmission between plate, center platen, and this kind of Linear transmission effect stability is reliable, deviation ratio is low, together
When, by making the center line of top in the horizontal direction pass through this setting of the Center of Pressure of battery, it is effectively guaranteed and was melted into
Pressure stability in journey suffered by battery core surface is simultaneously controllable, makes the inner pole piece compactness of its each battery core consistent, and make in battery core
Both positive and negative polarity and barrier film are all brought into close contact, it is ensured that the formation effect of battery, make lithium ion battery dischargeable capacity stabilization, volume change
Trend stability.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein the top is to be provided with Step Shaft, the pressing plate
Point-blank, top one end insertion is corresponding for some fixing holes, the center of the fixing hole and the Center of Pressure of battery
Coordinate in fixing hole and with the fixation interporal lacuna.
Step Shaft top is easily installed, and gap, which coordinates, is conveniently replaceable top, sets some centers and the Center of Pressure of battery
Fixing hole point-blank makes the fixture can be suitably used for the battery of different model size, greatly strengthen the practicality of fixture
Property, further ensuring pressure can be applied on the Center of Pressure of battery.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein the application pressure portion also includes several rubber
Pad, the rubber blanket is fixedly connected with pressing plate, front pressuring plate respectively, and several rubber pad rings are wound on close on top surrounding, pressing plate
Small top is fixedly provided with the position of top, the top, small top can move along a straight line relative to front pressuring plate.
Fixture is not before use, top, small top are contacted with front pressuring plate, in fixture operation process, with the fortune of big screw rod
Dynamic, pressing plate is gradually compressed to front pressuring plate, and the rubber blanket of top surrounding is conducive to balance pressing plate to the thrust of front pressuring plate, makes the thrust
Stepless action is on front pressuring plate, and big screw rod continues during moving, and top and small top are gradually drawn close to front pressuring plate, until with
It is contacted, now, under the pre-equilibration effect of rubber blanket, more can guarantee that the thrust of top on the Center of Pressure of battery,
On this basis, small top can also additionally apply the effect of balance thrust, and above-mentioned setting common guarantee thrust can be more effective
Ground is acted on the Center of Pressure of battery, thus more effectively ensure that force environment stable during Battery formation.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein being equiped with the front shoe perpendicular trapezoidal
Big screw rod, the big nut of the big screw rod is located at front shoe center, and one end of the big screw rod is step-like termination, described
It is installed with pressing plate in fixed disk, the step-like termination insertion fixed disk, around the periphery of big nut on the front shoe
The copper sheathing of the diameter parallel of uniform four axis and big nut, copper sheathing guide pillar passes through one end after copper sheathing to be fixed on pressing plate, copper sheathing
Guide pillar can be slided in copper sheathing, and some linear bearing guide pillars parallel with the big screw rod are by front pressuring plate, center platen, rear solid
Fixed board is cascaded, and the two ends of the linear bearing guide pillar are separately fixed at front shoe, on rear fixed plate, it is each it is described before
Pulling piece is installed in pressing plate, center platen, rear fixed plate bottom, and one end of the pulling piece is fixed on front pressuring plate, center platen, consolidated afterwards
In fixed board, adjacent pulling piece joins end to end, and pulls and elongated hole is opened up in the middle part of piece, pull piece to be slided along elongated hole.
Screw driven gearratio is big, stable drive, and is more beneficial for improving after the cooperation of copper sheathing guide pillar, linear bearing guide pillar
The stability of transmission, it is ensured that front pressuring plate, center platen, rear fixed plate are slided along same straight horizontal all the time, is difficult to deviate and slides rail
Road, it is ensured that the stability of power transmitting, the setting structure for pulling piece to link is simple, and linkage effect is good, speed is fast, also favorably
Transmitted in time, stably in thrust.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein being installed with the front pressuring plate, center platen, rear fixed plate
With the linear bearing being each interference fitted, the linear bearing guide pillar coordinates with linear bearing gap and can be along linear bearing axial direction
Slide, the relative blind hole in position, the two ends of spring are provided with the adjacent surface between the front pressuring plate, center platen, rear fixed plate
It is separately fixed in two neighboring blind hole.
Installing linear bearing is conducive to avoiding linear bearing guide pillar from from front pressuring plate, center platen, rear fixed plate occurring
Radial displacement, it is ensured that the linear bearing guide pillar stability of itself, and then the stability of transmission is ensure that, meanwhile, spring is favourable
The balance of stress between pressing plate is ensured, is easy to ensure cell pressure center stressed, and then ensure that thickness one after Battery formation
Cause.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein the support battery compartment also includes being installed in preceding fixation
The ramuscule frame plate of respective two side edge of plate, rear fixed plate, and front pressuring plate, center platen, rear fixed plate two bottom sides arrangement
The guide plate parallel with linear bearing guide pillar, guide plate two ends are separately fixed at the ramuscule frame plate at front pressuring plate, rear fixed plate
Bottom, the battery supporting plate two ends set hook, and described to hang on guide plate, the battery supporting plate can be slided in guide plate
It is dynamic.
Hang over and be easy to battery supporting plate on guide plate along guide plate slides, and hook and guide plate contact area are small,
Slip is accessible, will not also hinder the slip of front pressuring plate, center platen.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein being provided with the small rack plate vertical with guide plate
Elongated hole, the position of the guide plate can be adjusted along the elongated hole.
The regulation of battery placement location can be conveniently realized by the height that guide plate is adjusted along elongated hole, make different chis
The air bag of very little battery can stretch out front pressuring plate, center platen, outside rear fixed plate, thus meet many money flexible packaged battery pool sizes
Change.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein the battery supporting plate includes steel plate-like portion and is arranged on
The support block that the soft EVA material of use on plate-like portion is made, the hook is located at plate-like portion two ends, and the battery is positioned over institute
State in support block.
The battery supporting plate is simple in construction, easy to use, hangs over and is easy to battery supporting plate sliding on guide plate on guide plate
Move and battery is done corresponding motion, the support block that EVA material is made is compressed during battery is clamped, unclamping battery
During again can self-expansion, can meet it is multiple clamp demand, be difficult because being used for multiple times and extrusion damage.
Formation clamp for lithium ion battery with flexible packaging of the present invention, wherein the two ends of the linear bearing guide pillar are provided with screw thread platform
Rank, the linear bearing guide pillar is fixedly connected by nut with front shoe, rear fixed plate.
Present invention also offers a kind of battery formation method using above-mentioned fixture, comprise the following steps：
A, the height according to the size of the battery regulation guide plate, battery is positioned on the battery supporting plate,
And the air bag of battery is stretched out front pressuring plate, outside center platen；
B, the selection fixing hole corresponding with the Center of Pressure of battery on pressing plate, install top in fixing hole, make described
The center line of top in the horizontal direction passes through the Center of Pressure of battery；
C, the big screw rod of rotation make it move right, and then promote pressing plate to be slided to the right relative to front shoe level, until
Top is contacted with front pressuring plate；
D, promotion top continue to promote to the right, until front pressuring plate, center platen clamp battery completely；
E, rotate backward big screw rod and be moved to the left it, band dynamic pressure plate level is slided to the left, and then pulls front pressuring plate level
Slide to the left, most center platen is pulled open at last, take out battery, complete chemical conversion operation
One layer of uniform, robust solid electrolyte interface is formed on battery pole piece after being melted into using the above method
Film (i.e. film SEI), it is ensured that uniformity, security and the long circulation life of battery performance.
The formation clamp for lithium ion battery with flexible packaging of the present invention is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the main structure diagram of battery in formation clamp for lithium ion battery with flexible packaging of the present invention；
Fig. 2 is the left view structural representation of battery in formation clamp for lithium ion battery with flexible packaging of the present invention；
Fig. 3 is the dimensional structure diagram of formation clamp for lithium ion battery with flexible packaging of the present invention；
Fig. 4 is the partial enlarged drawing at A in Fig. 3；
Fig. 5 is Fig. 3 main view part sectioned view；
Fig. 6 is Fig. 5 B-B profiles；
Fig. 7 is the partial enlarged drawing at C in Fig. 5；
Fig. 8 is Fig. 3 vertical view part sectioned view；
Fig. 9 is the partial enlarged drawing at D in Fig. 8.
Embodiment
As shown in Fig. 3, Fig. 5, formation clamp for lithium ion battery with flexible packaging of the present invention includes applying pressure portion, clamps battery
Partly, battery compartment is supported.Applying pressure portion includes filling on front shoe 1, pressing plate 2 that left and right is parallel to each other, front shoe 1
Provided with perpendicular horizontally disposed trapezoidal big screw rod 6, the big nut 10 of big screw rod 6 is located at the center of front shoe 1, big spiral shell
Bar 6 passes through big nut 10, and the left end of big screw rod 6 connects external pneumatic spanner, and right-hand member is step-like termination.The left surface of pressing plate 2 leads to
Hexagon socket cap head screw is crossed to be installed with fixed disk 7, step-like termination insertion fixed disk 7 to limit step-like termination along big spiral shell
The radial-play of bar 6, it is ensured that transmission direction is not inclined.Around uniform four axis in periphery and big spiral shell of big nut 10 on front shoe 1
The copper sheathing 9 of the diameter parallel of mother 10, copper sheathing guide pillar 5 passes through right-hand member after copper sheathing 9 to be fixed by screws on pressing plate 2, copper sheathing guide pillar 5
It can be slided in copper sheathing 9.
As shown in Figure 1 and Figure 2, the gauge size of battery 21 can be different in the present invention, i.e. the length D and height of battery 21 in Fig. 1
Degree E size can change, and so, the Center of Pressure of battery 21 can also change.Meanwhile, battery 21 is on fixture after clamping, battery
21 positive and negative ear 212, negative electrode lug 213 will expose fixture, in order to the both positive and negative polarity clip of battery testing cabinet clamp positive and negative ear 212,
Negative electrode lug 213 carries out chemical synthesis technology, in addition, the air bag 211 of battery 21 will expose the outside of fixture, also as battery 21 is in chemical conversion
During can produce some gases, this gas can enter in air bag 211, and at this moment air bag 211, which just expands, becomes big.With reference to Fig. 3,
Shown in Fig. 4, Fig. 5, Fig. 8, clamp battery compartment include the front pressuring plate 11 parallel with front shoe 1, pressing plate 2, rear fixed plate 4 and
It is arranged in parallel in some pieces of center platens 12 between front pressuring plate 11, rear fixed plate 4, front pressuring plate 11, center platen 12, rear fixed plate 4
Between be parallel to each other and surfacing is smooth.During to make battery 21 inside battery formation clamp air bag 211 height F completely it is exposed
The top of front pressuring plate 11, center platen 12, i.e. make air bag 211 expose outside fixture, the present invention is additionally provided with support battery compartment,
The part includes the battery supporting plate 14 arranged between front pressuring plate 11, center platen 12, rear fixed plate 4, i.e. battery supporting plate 14 is arranged in
Between front pressuring plate 11 and center platen 12 adjacent thereto, between adjacent center platen 12, rear fixed plate 4 and center platen adjacent thereto
Between 12, battery 21 is positioned on battery supporting plate 14, and the air bag 211 of battery 21 stretches out front pressuring plate 11, outside center platen 12, to ensure
Enough expansion spaces can be obtained in air bag 211 after gas expansion, meanwhile, it is preceding to meet the space of needs after air bag 211 expands
Pressing plate 11, center platen 12 will also set enough thickness according to the actual requirements.
With reference to shown in Fig. 9, battery supporting plate 14 includes steel plate-like portion 141 and the soft EVA of use being arranged on plate-like portion
The support block 142 that material is made, hook is located at the two ends of plate-like portion 141, and battery 21 is positioned in support block 142.Clamping battery
During, the support block 142 that EVA material is made is compressed, and EVA material oneself expands during battery is unclamped, it is seen then that
The elastic performance of support block 142 is excellent, is squeezed and is hardly damaged, and is conducive to extending the service life of battery supporting plate 14, cost-effective.
As shown in Fig. 3, Fig. 4, Fig. 8, support battery compartment is also respective including being installed in front shoe 1, rear fixed plate 4
Ramuscule frame plate 13 at front and rear sides side, and front pressuring plate 11, center platen 12, the bottom front and rear sides arrangement of rear fixed plate 4
The horizontally-guided plate 17 parallel with linear bearing guide pillar 3, the two ends of guide plate 17 are solid by hexagon-headed bolt and wing nut respectively
The bottom for the ramuscule frame plate 13 being scheduled on front pressuring plate 11, rear fixed plate 4, the hook at the two ends of battery supporting plate 14 hangs over guide plate 17
On, link up with small with the contact area of guide plate 17, it is easy to slide.It is provided with ramuscule frame plate 13 vertical with guide plate 17 elongated
Hole, the high and low position of guide plate 17 can be adjusted along above and below elongated hole, to meet the change of many sizes of money flexible-packed battery 21.Specifically
Ground, the size of battery 21 differs, and battery 21 is on fixture after clamping, and the air bag 211 of battery 21 will expose fixture, thus
Need to adjust above and below the position progress to battery supporting plate 14, and the two ends of the battery supporting plate 14 are hung on guide plate 17, therefore,
Only regulation guide plate 17 can be only achieved the purpose of the high and low position of regulating cell supporting plate 14 in the position of short transverse.
As shown in Fig. 5, Fig. 6, Fig. 8, front pressuring plate 11, center platen 12, it is installed with rear fixed plate 4 and is each interference fitted
Linear bearing 32, the linear bearing guide pillar 3 parallel with big screw rod 6 coordinates with the gap of linear bearing 32 and in the case of by thrust
It can be slid axially along linear bearing 32.Above-mentioned interference fit ensure that linear bearing 32 in front pressuring plate 11, center platen 12, rear fixation
The stability of the position of plate 4, and then linear bearing guide pillar 3 is efficiently avoid on front pressuring plate 11, center platen 12, rear fixed plate 4
Generation radial displacement.In the present embodiment, linear bearing guide pillar 3 has 7, and 6 therein are arranged in fixture in pairs
Upper back, back lower, lower front, remaining one be arranged in fixture forward upper.Battery 21 is needed from fixture
Front side take out, i.e., go out in that side draw of single linear bearing guide pillar 3, for ease of taking-up, it is to avoid block, linear bearing is led at this
Post 3 is that single and fixed position is higher than other 6.Above-mentioned 7 linear bearing guide pillars 3 by front pressuring plate 11, center platen 12, after
Fixed plate 4 is cascaded.Preferably, it is fixed on front shoe 1, on rear fixed plate 4 for convenience of linear bearing guide pillar 3, it is simple
Change operation, the left and right ends of linear bearing guide pillar 3 are provided with screw thread step, the left and right ends pass through nut and front shoe 1, rear solid
Fixed board 4 is fixedly connected.
With reference to shown in Fig. 4, a pulling piece 19 is installed in each front pressuring plate 11, center platen 12, the bottom of rear fixed plate 4, often
The left end of pulling piece 19 on individual front pressuring plate 11, center platen 12, and the right-hand member of pulling piece 19 on rear fixed plate 4 pass through interior six
Angle fillister head screw is fixed on front pressuring plate 11, center platen 12, on rear fixed plate 4, two neighboring pulling piece 19 overlap from beginning to end it is connected,
Pull the middle part of piece 19 to open up the elongated hole extended in left-right direction, pull piece 19 to be slided along elongated hole.
It is relative that position is provided with reference to shown in Fig. 7, on the adjacent surface between front pressuring plate 11, center platen 12, rear fixed plate 4
Blind hole, the two ends of spring 16 are separately fixed in two neighboring blind hole.Set spring 16 be conducive to using spring 16 elasticity from
Stress between dynamic regulation pressing plate, makes the stress balance of battery 21, is easy to ensure the stress of the Center of Pressure of battery 21, stress is not sent out
Raw deviation, further ensures consistency of thickness after battery 21 is melted into.
As shown in Figure 5, Figure 8, the size difference of battery 21 can cause the Center of Pressure of battery 21 on battery formation clamp
Position it is different, therefore, if battery 21 is flattened, the Center of Pressure on fixture will be according to the of different sizes of battery 21
And be adjusted, therefore, be provided with some fixing holes on pressing plate 2, the center of fixing hole is according to the chi of the battery 21 of different model
Very little to set, point-blank, pressing plate 2 is before for the Center of Pressure of the center battery 21 corresponding with its of each fixing hole
The right side of pressing plate 11 is equiped with top 8, and top 8 can move along a straight line relative to front pressuring plate 11, closer or far from front pressuring plate 11.For
It is easily installed, top 8 can be Step Shaft, 8 left ends of top are embedded in corresponding fixing hole and coordinated with the fixation interporal lacuna, gap
The mode of cooperation is easy to change top 8 in time.To be further ensured that the validity of stress transmission, in coming directly towards 8 in the horizontal direction
Heart line passes through the Center of Pressure of battery 21.It can be seen that, and above-mentioned top 8 can adjust solid according to the change of the Center of Pressure of battery 21
Positioning is put, in matched corresponding fixing hole.
As shown in Figure 5, Figure 8, also by several fixed rubber blankets 15 of screw on the right flank of pressing plate 2, rubber in the present embodiment
Rubber cushion 15 is polyurethane material.Rubber blanket 15 is fixedly connected with pressing plate 2, front pressuring plate 11 respectively, so, the right-hand member of copper sheathing guide pillar 5, pressure
Plate 2, rubber blanket 15, front pressuring plate 11 4 are fixed together by screw, are easy to four linkages.Specifically, due to pressure
Plate 2 is fixedly connected with front pressuring plate 11, therefore, and pressing plate 2 can when being slided in the presence of big screw rod 6 relative to the level of front shoe 1
Front pressuring plate 11 is driven, and then by pulling the linkage of piece 19 to drive the integral level of center platen 12 to be slided along linear bearing guide pillar 3.It is some
Individual above-mentioned rubber blanket 15 is looped around rubber blanket 15 totally 4 in 8 surroundings of top, the present embodiment, respectively positioned at four angles of pressing plate 2
Portion, is conducive to adjusting stress balance.
As shown in Figure 5, Figure 8, on pressing plate 2 close to top 8 position at be fixedly provided with it is small top 18, for auxiliary adjustment by
Dynamic balance.The length of small top 18 is identical with 8 length of top, respectively less than the length of rubber blanket 15, the small shape of top 18 and installation
Mode is identical with top 8, and because its length is less than the length of rubber blanket 15, therefore, small top 18 same can be also come directly towards in the of 8
Moved along a straight line relative to front pressuring plate 11, closer or far from front pressuring plate 11.
As shown in Figure 5, Figure 8, fixture operation principle of the invention is as follows：
Under the revolving force effect of outside pneumatic impact spanner, big screw rod 6 moves right, and promotes pressing plate 2 to move right, pressing plate 2
It is first pre- to promote rubber blanket 15 to advance, because top 8,18 length of small top are respectively less than the length of rubber blanket 15, therefore, rank is initially pushed away in advance
Section, top 8, small top 18 are not contacted with front pressuring plate 11, and the above-mentioned pre- active force that pushes away is front pressuring plate 11, center platen 12 and battery 21
Be balanced it is pre- push away, prevent center platen 12 and battery 21 from tilting, treat by front pressuring plate 11, center platen 12 and the pre-pressing of battery 21 with
Afterwards, when pressing plate 2 readvances, will promote top 8 formed need thrusts, and come directly towards 8 center in battery 21
On Center of Pressure, it is ensured that battery 21, than more uniform pressure, is made the pressure size on battery core surface meet work by center platen 12
Skill requirement, to ensure being brought into close contact for pole piece and diaphragm interface, it is ensured that battery 21 completes chemical synthesis technology under a constant.Chemical conversion
Finish need take out battery when, big screw rod 6 rotates and is moved to the left, and is gradually opened front pressuring plate 11, front pressuring plate 11 is by pulling piece
19 pull center platen 12, because having multiple center platens 12 and multiple pulling pieces 19, pull piece 19 to pull open center platen one by one
12, do so with the pressure releases on battery 21, battery 21 can just be taken out.
With reference to shown in Fig. 5, Fig. 8, using the battery formation method of the fixture of the present invention, comprise the following steps：
A, the height according to the size of battery 21 regulation guide plate 17, battery 21 is positioned on battery supporting plate 14, and is made
The air bag 211 of battery 21 stretches out front pressuring plate 11, outside center platen 12；
B, the selection fixing hole corresponding with the Center of Pressure of above-mentioned battery 21 on pressing plate 2, install top in fixing hole
8, the center line of top 8 in the horizontal direction is passed through the Center of Pressure of battery 21；
C, the big screw rod 6 of rotation make it move right, and then promote pressing plate 2 to be slided to the right relative to the level of front shoe 1, directly
Contacted to top 8 with front pressuring plate 11；
D, promote top 8 continue promote to the right, until front pressuring plate 11, center platen 12 by battery 21 completely clamp；
E, rotate backward big screw rod 6 and be moved to the left it, the band level of dynamic pressure plate 2 is slided to the left, and then pulls front pressuring plate 11
Level is slided to the left, and most center platen 12 is pulled open at last, takes out battery 21, completes chemical conversion operation.
1C charge and discharges are carried out by experimental verification, after many money lithium ion batteries chemical conversion produced using the fixture of the present invention to follow
Ring, its first 100 times dischargeable capacity is stable, and volume change trend stability, and the battery produced without using this fixture is preceding 100
Easily occur discharge capacity during secondary charge and discharge and first raise the phenomenon reduced again.
In summary, fixture of the invention can adapt to many money flexible-packed batteries by supporting the regulation of battery compartment structure
The chemical conversion clamping of size, with the change of battery size, Center of Pressure is also in change, and the support battery compartment can meet size
The regulatory demand of change, applying pressure portion can promote pressing plate 2 to advance by big screw rod 6, and pressing plate 2 is first pre- to be promoted before rubber blanket 15
Enter, front pressuring plate 11, center platen 12 be balanced it is pre- push away, to prevent center platen 12 and battery 21 from tilting, after pre-pressing, pressure
When plate 2 readvances, can promote top 8 formed need thrusts, it is ensured that between the inner pole piece of battery 21 and barrier film by
Certain pressure thight laminating, and the discharge and recharge chemical synthesis technology of battery 21, under the technique, battery are carried out under an even pressure
One layer of uniform, robust solid electrolyte interface film (i.e. SEI films) is formd on 21 pole piece, so as to ensure that battery 21
Uniformity, security and the long circulation life of performance.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (9)
1. formation clamp for lithium ion battery with flexible packaging, it is characterised in that：Including applying pressure portion, clamping battery compartment, support
Battery compartment,
Described to apply front shoe (1), pressing plate (2) that pressure portion includes being parallel to each other, the pressing plate (2) can be relative to preceding
Fixed plate (1) level is slided；
It is described clamping battery compartment include the front pressuring plate (11) parallel with front shoe (1), pressing plate (2), rear fixed plate (4) and
It is arranged in parallel in some pieces of center platens (12) between the front pressuring plate (11), rear fixed plate (4), the front pressuring plate (11) and pressure
Plate (2) is fixedly connected, and pressing plate (2) level drives the front pressuring plate (11), center platen (12) integral level to slide when sliding；
The support battery compartment includes the battery supporting plate being arranged between front pressuring plate (11), center platen (12), rear fixed plate (4)
(14), battery (21) is positioned on the battery supporting plate (14), and the air bag (211) of battery (21) stretches out front pressuring plate (11), middle pressure
Plate (12) is outside；
The pressing plate (2) is equiped with top (8) close to the side of the front pressuring plate (11), described to come directly towards (8) in the horizontal direction
Center line passes through the Center of Pressure of battery (21)；
The top (8) is to be provided with some fixing holes, the center of the fixing hole and battery on Step Shaft, the pressing plate (2)
(21) point-blank, described top (8) one end is embedded in corresponding fixing hole and matched somebody with somebody with the fixation interporal lacuna for Center of Pressure
Close.
2. formation clamp for lithium ion battery with flexible packaging according to claim 1, it is characterised in that：The application pressure portion
Also include several rubber blankets (15), the rubber blanket (15) is fixedly connected with pressing plate (2), front pressuring plate (11) respectively, several
Rubber blanket (15), which is looped around on top (8) surrounding, pressing plate (2) at the position of top (8), is fixedly provided with small top (18), institute
Stating top (8), small top (18) can move along a straight line relative to front pressuring plate (11).
3. formation clamp for lithium ion battery with flexible packaging according to claim 2, it is characterised in that：The front shoe (1)
On be equiped with perpendicular trapezoidal big screw rod (6), the big nut (10) of the big screw rod (6) is located at front shoe (1) center
Place, one end of the big screw rod (6) is to be installed with fixed disk (7), the step-like end on step-like termination, the pressing plate (2)
In the embedded fixed disk (7) of head, around uniform four axis in periphery and big nut of big nut (10) on the front shoe (1)
(10) copper sheathing (9) of diameter parallel, through copper sheathing (9), one end is fixed on pressing plate (2) copper sheathing guide pillar (5) afterwards, copper sheathing guide pillar
(5) it can slide in the copper sheathing (9), some linear bearing guide pillars (3) parallel with the big screw rod (6) are by front pressuring plate
(11), center platen (12), rear fixed plate (4) are cascaded, and the two ends of the linear bearing guide pillar (3) are solid before being separately fixed at
In fixed board (1), rear fixed plate (4), pulling is installed in each front pressuring plate (11), center platen (12), rear fixed plate (4) bottom
Piece (19), described one end for pulling piece (19) is fixed on front pressuring plate (11), center platen (12), on rear fixed plate (4), adjacent to pull
Piece (19) joins end to end, and pulls and elongated hole is opened up in the middle part of piece (19), pulls piece (19) to be slided along elongated hole.
4. formation clamp for lithium ion battery with flexible packaging according to claim 3, it is characterised in that：The front pressuring plate (11),
The linear bearing (32) for being installed with and being each interference fitted on center platen (12), rear fixed plate (4), the linear bearing guide pillar
(3) coordinate and can be slid axially along linear bearing (32) with linear bearing (32) gap, the front pressuring plate (11), center platen
(12) the relative blind hole in position, is provided with the adjacent surface between rear fixed plate (4), the two ends of spring (16) are separately fixed at phase
In adjacent two blind holes.
5. formation clamp for lithium ion battery with flexible packaging according to claim 4, it is characterised in that：The support battery compartment
Also include being installed in front shoe (1), the ramuscule frame plate (13) of respective two side edge of rear fixed plate (4), and front pressuring plate
(11), center platen (12), the guide plate (17) parallel with linear bearing guide pillar (3) of rear fixed plate (4) two bottom sides arrangement, lead
It is separately fixed to plate (17) two ends in ramuscule frame plate (13) bottom at front pressuring plate (11), rear fixed plate (4) place, the battery tray
Plate (14) two ends set hook, and described to hang on guide plate (17), the battery supporting plate (14) can be in guide plate (17)
Slide.
6. formation clamp for lithium ion battery with flexible packaging according to claim 5, it is characterised in that：The ramuscule frame plate (13)
On be provided with the elongated hole vertical with guide plate (17), the position of the guide plate (17) can be adjusted along the elongated hole.
7. formation clamp for lithium ion battery with flexible packaging according to claim 6, it is characterised in that：The battery supporting plate (14)
The support block (142) being made including steel plate-like portion (141) and the soft EVA material of use being arranged on plate-like portion, it is described to hang
Hook is located at plate-like portion (141) two ends, and the battery (21) is positioned in the support block (142).
8. formation clamp for lithium ion battery with flexible packaging according to claim 7, it is characterised in that：The linear bearing guide pillar
(3) two ends are provided with screw thread step, and the linear bearing guide pillar (3) is solid by nut and front shoe (1), rear fixed plate (4)
Fixed connection.
9. utilize the battery formation method of the formation clamp for lithium ion battery with flexible packaging any one of claim 5 to 8, bag
Include following steps：
A, the height according to the size of the battery (21) the regulation guide plate (17), the battery is positioned over by battery (21)
On supporting plate (14), and the air bag (211) of battery (21) is set to stretch out front pressuring plate (11), center platen (12) outside；
B, the selection fixing hole corresponding with the Center of Pressure of battery (21) on pressing plate (2), the installing top (8) in fixing hole,
The center line of the top (8) in the horizontal direction is set to pass through the Center of Pressure of battery (21)；
C, the big screw rod (6) of rotation make it move right, and then promote pressing plate (2) to be slided to the right relative to front shoe (1) level,
Until top (8) is contacted with front pressuring plate (11)；
D, promote top (8) continue promote to the right, until front pressuring plate (11), center platen (12) by battery (21) completely clamp；
E, rotate backward big screw rod (6) and be moved to the left it, band dynamic pressure plate (2) level is slided to the left, and then pulls front pressuring plate
(11) level is slided to the left, and most center platen (12) is pulled open at last, takes out battery (21), completes chemical conversion operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606675.5A CN105098255B (en) | 2015-09-22 | 2015-09-22 | Formation clamp for lithium ion battery with flexible packaging and utilize its battery formation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606675.5A CN105098255B (en) | 2015-09-22 | 2015-09-22 | Formation clamp for lithium ion battery with flexible packaging and utilize its battery formation method |
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| Publication Number | Publication Date |
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| CN105098255A CN105098255A (en) | 2015-11-25 |
| CN105098255B true CN105098255B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510606675.5A Active CN105098255B (en) | 2015-09-22 | 2015-09-22 | Formation clamp for lithium ion battery with flexible packaging and utilize its battery formation method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248593B (en) * | 2017-05-27 | 2020-05-12 | 深圳市中基自动化有限公司 | Battery hot pressing becomes device |
| CN107607750A (en) * | 2017-10-09 | 2018-01-19 | 力信（江苏）能源科技有限责任公司 | Frock is held in a kind of lithium ion battery test clamp |
| CN107978798A (en) * | 2017-11-20 | 2018-05-01 | 深圳市新浦自动化设备有限公司 | Formation of Li-ion batteries equipment |
| CN108448158A (en) * | 2018-04-13 | 2018-08-24 | 河南省超霸新能源科技有限公司 | A kind of soft package lithium battery battery formation clamp |
| CN110504476A (en) * | 2018-05-16 | 2019-11-26 | 深圳市佳得设备科技有限公司 | A kind of pressure formation device |
| CN109888400B (en) * | 2019-04-10 | 2021-03-02 | 珠海冠宇电池股份有限公司 | Lithium ion battery formation clamp and formation equipment containing same |
| CN110658475A (en) * | 2019-08-30 | 2020-01-07 | 孚能科技(赣州)股份有限公司 | Cell aging method and clamping device for cell aging |
| CN110544790A (en) * | 2019-08-30 | 2019-12-06 | 孚能科技(赣州)股份有限公司 | Cell activation method and clamping device for cell activation |
| CN110544800A (en) * | 2019-08-30 | 2019-12-06 | 孚能科技(赣州)股份有限公司 | cell formation method and clamping device for cell formation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205004402U (en) * | 2015-09-22 | 2016-01-27 | 河南环宇赛尔新能源科技有限公司 | Formation clamp for lithium ion battery with flexible packaging |
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| JP4486223B2 (en) * | 2000-06-16 | 2010-06-23 | 三菱重工業株式会社 | Method for forming safety valve of non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery |
| CN201213145Y (en) * | 2008-06-30 | 2009-03-25 | 深圳市比克电池有限公司 | Clamp for battery aging |
| CN202167578U (en) * | 2011-01-13 | 2012-03-14 | 东莞新能源科技有限公司 | Flexible package lithium-ion secondary battery formation clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205004402U (en) * | 2015-09-22 | 2016-01-27 | 河南环宇赛尔新能源科技有限公司 | Formation clamp for lithium ion battery with flexible packaging |
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